Combine all ingredients EXCEPT ? cup sugar and 1 ? tsp almond extract in a large bowl and mix well. Pour into unbaked pie crusts and bake at 400? for 15 minutes. Reduce heat to 350? and bake 30 minutes more or until a knife inserted at the middle comes out clean. Beat egg whites until stiff gradually adding ? cup sugar and 1? tsps almond extract. Top pies and return to 400? oven and cook until lightly brown.